most people use their one and only pci slot for the sound card ( like myself )
there are several alternatives, i got a hd radio off ebay for 30$, got mitch's cabel, along with a fdmi serial to usb cabel.
the reception inst too bad, i can get some hd stations, it would be better if i had an acutal antenna. ( have had a stubbie antenna forever )
another alternative is to wait for the HD radio that mp3car was supposed to come out with..
but that has been stuck in certification forever.